Combined rotary sealing ring for hole

Abstract

The utility model discloses a combined rotary sealing ring for a hole, which comprises an inner ring and an outer ring, and the inner ring is arranged in the outer ring; the inner ring comprises an inner ring body, a first inclined plane is arranged on the outer side of the inner ring body, a plane is arranged on the outer side of the inner ring body and located on the edge of the first inclined plane, a slope is arranged on the outer side of the inner ring body and located on the side, away from the first inclined plane, of the plane, and an arc sealing lip is formed in the corner of the outer side of the inner ring body; the outer ring comprises an outer ring body, and a clamping bevel edge is arranged on the outer side of the outer ring body. The clamping bevel edge on the outer ring body is pushed into the containing hole, the step formed by the containing hole and the second through hole can make contact with one side of the inner ring body, installation can be achieved, the structure is simple, machining is easy, the outer ring body and the inner ring body can be effectively and tightly attached, and therefore the sealing effect is achieved. And the outer ring body and the inner ring body can be finished by a turning method, and can be suitable for standard grooves or non-standard grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary sealing rings, in particular to a combined rotary sealing ring for holes. Background Art

[0002] Rotary sealing structures are widely used in the shaft neck sealing, mechanical sealing, pump sealing, valve sealing and other fields of various mechanical equipment. Bidirectional rotary sealing structures are commonly found in automotive water pumps, reciprocating compressors, gas turbines and turbochargers, while unidirectional rotary sealing structures are mostly used in construction machinery, agricultural machinery and excavators, etc. Rotary sealing realizes sealing by generating contact pressure on another sealing surface through a rotary sealing surface, and has a wide range of applications.

[0003] However, traditional rotary seals have some disadvantages: their structures are complex, the processing difficulty is large, maintenance is not easy, the requirements for sealing media are high; and they are only applicable to standard grooves and cannot be applied to non-standard grooves.

[0004] Based on this, those skilled in the art have proposed a combined rotary sealing ring for holes. Content of the Utility Model

[0005] The utility model discloses a combined rotary sealing ring for holes, aiming to solve the technical problems in the background art.

[0006] In order to achieve the above object, the utility model adopts the following technical solutions:

[0007] A combined rotary sealing ring for holes, comprising an inner ring and an outer ring, characterized in that the inner ring is arranged inside the outer ring;

[0008] The inner ring includes an inner ring body, a first inclined surface is arranged on the outer side of the inner ring body, a plane is arranged on the outer side of the inner ring body and at the edge of the first inclined surface, a slope is arranged on the outer side of the inner ring body and on the side of the plane away from the first inclined surface, and an arc sealing lip is arranged at the outer corner of the inner ring body;

[0009] A first through hole is arranged inside the inner ring body, a chamfer is arranged on one side of the inner ring body and on one side of the first through hole, a mounting hole is arranged inside the inner ring body and on one side of the first through hole, and an inclined hole is arranged inside the inner ring body and on the side of the mounting hole away from the first through hole;

[0010] The diameter of the mounting hole is larger than that of the first through hole;

[0011] The outer ring includes an outer ring body, a clamping bevel is arranged on the outer side of the outer ring body, and a pointed sealing lip with an arc-shaped structure is arranged on the outer side of the outer ring body and on one side of the clamping bevel;

[0012] A second through hole is formed inside the outer ring body. A placement hole is formed inside the outer ring body and on one side of the second through hole. A large-angle chamfer is formed inside the outer ring body and on the side of the placement hole away from the second through hole.

[0013] The combined rotary shaft seal for hole provided by the utility model has the following advantages:

[0014] Push the engaging chamfer on the outer ring body into the placement hole. The step formed by the placement hole and the second through hole can contact one side of the inner ring body, so that installation can be achieved. Such a structure is simple and easy to process, and effective tight fitting can be achieved between the two, so as to achieve the sealing effect. Both the outer ring body and the inner ring body can be completed by turning. Whether it is a standard groove or a non-standard groove, it can be applied. Description of the Drawings

[0015] Figure 1 An isometric view of a combined rotary shaft seal for hole proposed by the utility model.

[0016] Figure 2 A cross-sectional view of a combined rotary shaft seal for hole proposed by the utility model.

[0017] Figure 3 An inner ring cross-sectional view of a combined rotary shaft seal for hole proposed by the utility model.

[0018] Figure 4 An outer ring cross-sectional view of a combined rotary shaft seal for hole proposed by the utility model.

[0019] In the drawings: 1, inner ring; 11, inner ring body; 12, first inclined surface; 13, flat surface; 14, slope; 15, arc sealing lip; 16, inclined chamfer; 17, first through hole; 18, mounting hole; 19, inclined hole; 2, outer ring; 21, outer ring body; 22, engaging chamfer; 23, pointed sealing lip; 24, second through hole; 25, placement hole; 26, large-angle chamfer. Detailed Description of the Invention

[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0021] A combined rotary seal ring for holes disclosed by the present utility model.

[0022] Referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a combined rotary seal ring for holes includes an inner ring 1 and an outer ring 2, characterized in that the inner ring 1 is arranged inside the outer ring 2;

[0023] The inner ring 1 includes an inner ring body 11, a first inclined surface 12 is arranged on the outer side of the inner ring body 11, a flat surface 13 is arranged on the outer side of the inner ring body 11 and at the edge of the first inclined surface 12, a slope surface 14 is arranged on the outer side of the inner ring body 11 and on the side away from the first inclined surface 12 of the flat surface 13, and an arc sealing lip 15 is arranged at the outer corner of the inner ring body 11;

[0024] A first through hole 17 is opened inside the inner ring body 11, an inclined chamfer 16 is opened on one side of the inner ring body 11 and on one side of the first through hole 17, a mounting hole 18 is opened inside the inner ring body 11 and on one side of the first through hole 17, and an inclined hole 19 is opened inside the inner ring body 11 and on the side away from the first through hole 17 of the mounting hole 18;

[0025] The diameter of the mounting hole 18 is larger than that of the first through hole 17;

[0026] The outer ring 2 includes an outer ring body 21, a clamping bevel edge 22 is arranged on the outer side of the outer ring body 21, and a pointed sealing lip 23 with an arc-shaped structure is arranged on the outer side of the outer ring body 21 and on one side of the clamping bevel edge 22;

[0027] A second through hole 24 is opened inside the outer ring body 21, a placing hole 25 is opened inside the outer ring body 21 and on one side of the second through hole 24, and a large-angle chamfer edge 26 is opened inside the outer ring body 21 and on the side away from the second through hole 24 of the placing hole 25.

[0028] Working principle: This device is composed of the inner ring 1 and the outer ring 2. The clamping bevel edge 22 on the outer ring body 21 is pushed into the placing hole 25. The step formed by the placing hole 25 and the second through hole 24 can be in contact with one side of the inner ring body 11, so that installation can be formed. Such a structure is simple and easy to process, and effective and tight fitting can be achieved between the two, so as to achieve the sealing effect.

[0029] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. The substitution may be the substitution of part of the structure, device, method steps, or the whole technical solution. Any equivalent substitution or change made according to the technical solution and the inventive concept of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A combined rotating seal ring for a hole, comprising an inner ring (1) and an outer ring (2), characterized in that: The inner ring (1) is arranged inside the outer ring (2); The inner ring (1) comprises an inner ring body (11), a first inclined surface (12) is arranged on the outer side of the inner ring body (11), a plane (13) is arranged on the outer side of the inner ring body (11) and at the edge of the first inclined surface (12), a slope surface (14) is arranged on the outer side of the inner ring body (11) and at a side of the plane (13) away from the first inclined surface (12), and a circular arc sealing lip (15) is provided on the outer side corner of the inner ring body (11); The outer ring (2) comprises an outer ring body (21), the outer side of the outer ring body (21) is provided with a snap-fitting bevel (22), and the outer side of the outer ring body (21) and located on one side of the snap-fitting bevel (22) is provided with a pointed sealing lip (23) with an arc-shaped structure.

2. A combined rotary seal ring for a hole according to claim 1, characterized in that: A first through hole (17) is provided inside the inner ring body (11); an oblique chamfer (16) is provided on one side of the inner ring body (11) and located on the side of the first through hole (17); a mounting hole (18) is provided inside the inner ring body (11) and located on the side of the first through hole (17); and an oblique hole (19) is provided inside the inner ring body (11) and located on the side of the mounting hole (18) away from the first through hole (17).

3. A combined rotary seal ring for a hole according to claim 2, characterized in that: The diameter of the mounting hole (18) is larger than that of the first through hole (17).

4. A combined rotary seal ring for a hole according to claim 1, characterized in that: A second through hole (24) is provided inside the outer ring body (21), a placement hole (25) is provided inside the outer ring body (21) and located on one side of the second through hole (24), and a large-angle chamfered edge (26) is provided inside the outer ring body (21) and located on a side of the placement hole (25) away from the second through hole (24).

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